21" Tandem 563 Undermount Drawer Slide for 5/8" Drawer Material, 90 lb Capacity Full Extension with BLUMOTION Soft-Closing

The Blum 563 TANDEM plus BLUMOTION Undermount Drawer Slide is an industrial-grade solution for woodworking projects requiring full-extension access and soft-close functionality. Blum’s TANDEM plus BLUMOTION technology offers an innovative design that supports 1/2” drawer side thickness. For 5/8” drawer material, we recommend the Blum 563H model. These undermount drawer slides have a 100-pound load capacity and glide without resistance, making them an excellent choice for standard residential or commercial cabinetry builds.

Built to suit both face frame and frameless cabinetry, the Blum 563.5330B offers four-way adjustability for perfect drawer positioning. Its concealed undermount slide design keeps hardware hidden while delivering soft-close performance through integrated BLUMOTION. 

Drawer slides deliver smooth motion, soft-close reliability, and long-term durability, which everyone from hobbyists to professionals counts on for kitchens, bathrooms, and custom office cabinetry. The 563 series of Blum’s TANDEM plus drawer slides is a go-to option for modernized installation and long-term use. From alignment accuracy to straightforward soft-close action, every detail supports efficient workflows and superior craftsmanship. 

Features:

• Bottom-mount holes for easy installation

• Concealed runners for clean design

• Elongated holes for precise depth adjustment

• Full-extension soft-close motion with BLUMOTION

• Four-dimensional adjustability: side, height, tilt, depth

• Rated for 100 lb static load capacity

• Supports panel or blocked-out face frame cabinets

• Suitable for 1/2” (13mm) drawer material

• Certifications: BHMA, KCMA, BIFMA compliant

• Made in the USA